The effect of pipe collectors in reducing the drainage coefficient rate

A high groundwater table and soil salinity, especially in arid regions, often cause serious problems for agriculture. In irrigated areas the subsurface drainage can be an effective technique to lower the depth of the groundwater table and reduce soil salinity. In drainage systems, lateral pipes are...

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Main Authors: Ghorbani, Karim, Wayayok, Aimrun, Abbaszadeh, Masumeh, Abdullah, Ahmad Fikri
Format: Article
Language:English
Published: IWA Publishing 2015
Online Access:http://psasir.upm.edu.my/id/eprint/46563/1/The%20effect%20of%20pipe%20collectors%20in%20reducing%20the%20drainage%20coefficient%20rate.pdf
http://psasir.upm.edu.my/id/eprint/46563/
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Institution: Universiti Putra Malaysia
Language: English
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spelling my.upm.eprints.465632018-03-29T02:31:45Z http://psasir.upm.edu.my/id/eprint/46563/ The effect of pipe collectors in reducing the drainage coefficient rate Ghorbani, Karim Wayayok, Aimrun Abbaszadeh, Masumeh Abdullah, Ahmad Fikri A high groundwater table and soil salinity, especially in arid regions, often cause serious problems for agriculture. In irrigated areas the subsurface drainage can be an effective technique to lower the depth of the groundwater table and reduce soil salinity. In drainage systems, lateral pipes are designed to collect the free water from soil and convey it into collectors. In other words, collectors are commonly designed to convey drainage water from laterals downstream, while the laterals play an additional role in removing excess water from irrigated land. The present research was conducted to investigate the effects of collectors in discharging excess water from soil using a laboratory-tank model. The results indicated that on average 24% of drainage water was directly discharged through the collector pipe when the hydraulic gradient of the flow was sloped toward the collector pipe. Hence, it was concluded that, with proper monitoring, collectors were capable of reducing the drainage coefficient from an average of 32.5 to 24.5 mm/day, while drain spacing of the laterals can increase the results by about 15% in comparison with the present situation. IWA Publishing 2015-07 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/46563/1/The%20effect%20of%20pipe%20collectors%20in%20reducing%20the%20drainage%20coefficient%20rate.pdf Ghorbani, Karim and Wayayok, Aimrun and Abbaszadeh, Masumeh and Abdullah, Ahmad Fikri (2015) The effect of pipe collectors in reducing the drainage coefficient rate. Water Science and Technology: Water Supply, 15 (4). pp. 675-682. ISSN 1606-9749; ESSN: 1607-0798 http://ws.iwaponline.com/ 10.2166/ws.2015.014
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description A high groundwater table and soil salinity, especially in arid regions, often cause serious problems for agriculture. In irrigated areas the subsurface drainage can be an effective technique to lower the depth of the groundwater table and reduce soil salinity. In drainage systems, lateral pipes are designed to collect the free water from soil and convey it into collectors. In other words, collectors are commonly designed to convey drainage water from laterals downstream, while the laterals play an additional role in removing excess water from irrigated land. The present research was conducted to investigate the effects of collectors in discharging excess water from soil using a laboratory-tank model. The results indicated that on average 24% of drainage water was directly discharged through the collector pipe when the hydraulic gradient of the flow was sloped toward the collector pipe. Hence, it was concluded that, with proper monitoring, collectors were capable of reducing the drainage coefficient from an average of 32.5 to 24.5 mm/day, while drain spacing of the laterals can increase the results by about 15% in comparison with the present situation.
format Article
author Ghorbani, Karim
Wayayok, Aimrun
Abbaszadeh, Masumeh
Abdullah, Ahmad Fikri
spellingShingle Ghorbani, Karim
Wayayok, Aimrun
Abbaszadeh, Masumeh
Abdullah, Ahmad Fikri
The effect of pipe collectors in reducing the drainage coefficient rate
author_facet Ghorbani, Karim
Wayayok, Aimrun
Abbaszadeh, Masumeh
Abdullah, Ahmad Fikri
author_sort Ghorbani, Karim
title The effect of pipe collectors in reducing the drainage coefficient rate
title_short The effect of pipe collectors in reducing the drainage coefficient rate
title_full The effect of pipe collectors in reducing the drainage coefficient rate
title_fullStr The effect of pipe collectors in reducing the drainage coefficient rate
title_full_unstemmed The effect of pipe collectors in reducing the drainage coefficient rate
title_sort effect of pipe collectors in reducing the drainage coefficient rate
publisher IWA Publishing
publishDate 2015
url http://psasir.upm.edu.my/id/eprint/46563/1/The%20effect%20of%20pipe%20collectors%20in%20reducing%20the%20drainage%20coefficient%20rate.pdf
http://psasir.upm.edu.my/id/eprint/46563/
http://ws.iwaponline.com/
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